Drugs like cocaine and even marijuana and nicotine affect the brainâs natural function. The drug overwhelms the brain with a chemical called dopamine. Dopamine makes the brain and body feel pleasure. When the drug wears off, the dopamine drains out of the userâs system. This makes a person feel that the only way they can feel pleasure is by taking drugs.
In 1984, Apple debuted the operating system that is now known as the Classic Mac OS with its release of the original Macintosh System Software. The system, rebranded Mac OS in 1996, was preinstalled on every Macintosh until 2002 and offered on Macintosh clones for a short time in the 1990s.
Without getting into a PC vs Apple debate; the main difference between an IBM (PC) and an Apple PC, is the operating system. Apple computers run on Machintosh OSX (older appâ¦les might use an earlier OS version, such as OS9) while IBM PC's will run on Microsoft Windows operating systems, such as Windows Vista, Windows XP or the latest Windows 7. Apple computers generally are more expensive, and at the same time offer reliability.